diff --git a/domain_theme_switch.module b/domain_theme_switch.module
index bb547d6..d9286e4 100644
--- a/domain_theme_switch.module
+++ b/domain_theme_switch.module
@@ -1,4 +1,8 @@
 <?php
+/**
+ * @file
+ * Domain theme Switcher.
+ */
 
 use Drupal\Core\Routing\RouteMatchInterface;
 
diff --git a/src/Form/DomainThemeSwitchConfigForm.php b/src/Form/DomainThemeSwitchConfigForm.php
index 0d1971a..74e3c0d 100644
--- a/src/Form/DomainThemeSwitchConfigForm.php
+++ b/src/Form/DomainThemeSwitchConfigForm.php
@@ -69,7 +69,6 @@ class DomainThemeSwitchConfigForm extends ConfigFormBase {
    *
    * @param array $form
    *   Form items.
-   *
    * @param FormStateInterface $form_state
    *   Formstate for validate.
    */
diff --git a/src/Theme/ThemeSwitchNegotiator.php b/src/Theme/ThemeSwitchNegotiator.php
index 9fcc3de..c7c9dd5 100644
--- a/src/Theme/ThemeSwitchNegotiator.php
+++ b/src/Theme/ThemeSwitchNegotiator.php
@@ -10,7 +10,7 @@ use Drupal\Core\Theme\ThemeNegotiatorInterface;
  */
 class ThemeSwitchNegotiator implements ThemeNegotiatorInterface {
 
-  // protected theme variable to set the default theme if no theme is selected.
+  // Protected theme variable to set the default theme if no theme is selected.
   protected $theme = NULL;
 
   /**